package com.lagou.dao.impl;

import com.lagou.dao.CourseDao;
import com.lagou.pojo.Course;
import com.lagou.utils.DruidUtils;
import org.apache.commons.dbutils.QueryRunner;
import org.apache.commons.dbutils.handlers.BeanHandler;
import org.apache.commons.dbutils.handlers.BeanListHandler;

import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

public class CourseDaoImpl implements CourseDao {
    @Override
    public List<Course> findCourseList() {
        QueryRunner qr = new QueryRunner(DruidUtils.getDataSource());
        String sql = "SELECT id,course_name,price,sort_num,STATUS FROM course where is_del = ?";
        try {
            List<Course> courseList = qr.query(sql, new BeanListHandler<>(Course.class), 0);
            return courseList;
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return null;
    }

    @Override
    public List<Course> findByCourseNameAndStatus(String courseName, String status) {
        try {
            QueryRunner qr = new QueryRunner(DruidUtils.getDataSource());
            StringBuffer sb = new StringBuffer("SELECT id,course_name,price,sort_num,STATUS FROM course WHERE 1=1 and is_del = ?");
            List<Object> list = new ArrayList<>();
            list.add(0);
            if (courseName != null && courseName != "") {
                sb.append(" AND course_name LIKE ?");
                courseName = "%" + courseName + "%";
                list.add(courseName);
            }
            if (status != null && status != "") {
                sb.append(" AND STATUS = ?");
                list.add(Integer.parseInt(status));
            }
            List<Course> courseList = qr.query(sb.toString(), new BeanListHandler<>(Course.class), list.toArray());
            return courseList;
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return null;
    }

    @Override
    public int saveCourseSalesInfo(Course course) {
        try {
            QueryRunner qr = new QueryRunner(DruidUtils.getDataSource());
            String sql = "INSERT INTO course(course_name,brief,teacher_name,teacher_info,preview_first_field,preview_second_field,discounts,price,price_tag,share_image_title,share_title,share_description,course_description,course_img_url,`status`,create_time,update_time)VALUES(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)";
            Object[] param = {
                    course.getCourse_name(), course.getBrief(), course.getTeacher_name(), course.getTeacher_info(), course.getPreview_first_field(),
                    course.getPreview_second_field(), course.getDiscounts(), course.getPrice(), course.getPrice_tag(),
                    course.getShare_image_title(), course.getShare_title(), course.getShare_description(),
                    course.getCourse_description(), course.getCourse_img_url(), course.getStatus(), course.getCreate_time(), course.getUpdate_time()
            };
            return qr.update(sql, param);
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return -1;
    }

    @Override
    public Course findCourseById(int id) {
        QueryRunner qr = new QueryRunner(DruidUtils.getDataSource());
        String sql = "SELECT id,course_name,brief,teacher_name,teacher_info,preview_first_field,preview_second_field,discounts,price,price_tag,share_image_title,share_title,share_description,course_description,course_img_url,`status` FROM course WHERE id = ?";
        try {
            return qr.query(sql, id, new BeanHandler<>(Course.class));
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return null;
    }

    @Override
    public int updateCourseSalesInfo(Course course) {
        QueryRunner qr = new QueryRunner(DruidUtils.getDataSource());
        String sql = "UPDATE course SET course_name = ?,brief = ?,teacher_name = ?,teacher_info = ?,preview_first_field = ?,preview_second_field = ?,discounts = ?,price = ?,price_tag = ?,share_image_title = ?,share_title = ?,share_description = ?,course_description = ?,course_img_url = ?,update_time = ? WHERE id = ?";
        try {
            Object[] param = {
                    course.getCourse_name(), course.getBrief(), course.getTeacher_name(), course.getTeacher_info(), course.getPreview_first_field(),
                    course.getPreview_second_field(), course.getDiscounts(), course.getPrice(), course.getPrice_tag(),
                    course.getShare_image_title(), course.getShare_title(), course.getShare_description(),
                    course.getCourse_description(), course.getCourse_img_url(), course.getUpdate_time(), course.getId()
            };
            return qr.update(sql, param);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return -1;
    }

    @Override
    public int updateCourseStatus(Course course) {
        QueryRunner qr = new QueryRunner(DruidUtils.getDataSource());
        String sql = "UPDATE course SET status = ?,update_time = ? WHERE id = ?";
        try {
            Object[] param = {
                    course.getStatus(), course.getUpdate_time(), course.getId()
            };
            return qr.update(sql, param);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return -1;
    }
}
